API AlgaeFix Marine Aquarium Algaecide, 16 oz., 16 FZ - 387D
Clear up algae problems with revolutionary AlgaeFix for fresh or saltwater aquariums. Use AlgaeFix Freshwater for Freshwater aquariums containing live plants and fish to control green water, blue-green algae, black beard, string or hair, blanket-weed algae, and more (not for use with crustaceans such as crabs, shrimp, or freshwater lobsters). AlgaeFix Marine can be used in aquariums with corals and other invertebrates. Controls Cladophora, Oscillatoria/Spirulina major, and Cyclotella algae in marine aquariums. 16 oz treats up to 4,800 gallons.